Digital computer



June 23, 1970 Filed Oct. 26, 953

DRUM LAYOUT FIG. I

J. J. LENTZ DIGITAL COMPUTER 26 Sheets-Sheet l INVENTOR.

JOHN .1. LENTZ ATTORN Y June 23, 1970 E -r2 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 5 F I G. 30

WORK 1 N6 PULSES BLANK I N6 PULSES 5 WWW TAG GATE POINT GATE NUMBER GATES a, 1-1 I' L 11 m I L NOT-ZERO GATE NUMBERS ONLY GATE 9 GATE Q GATE 1 DIGIT =1 1 OIGIT 1 Box 1 1 1 1 1 1 1 0 4o so no 1 4o 1 so mcnoszconos INVENTOR- JOHN J. LENTZ JTTORNEY June 23, 1970 J, J, LENTZ 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 4 I GATE IBW WW UWUINUUUUUMHMUUMRNUUWMIM Q GATE IG WHMMJUWWWMIWWUUL HULTIPLY g GAL;

"--- :1 BOXES 1 DIVIDE (g1 GATE --1s 8OXE$-| n1 ZERO DIGIT GATE NOT-ZERO mGlT GATE u u w ---a I- I sex SELECTED DIGI'I' GATE 2111 Box SYNCHRONIZING GATE A 22 H d 'L- SINGLE-SHOT GATE coulPuTE GATE SHIFT GATE I I I I I I I I I o I Z 3 4 a G 7 a 5 1 MACHINE CYCLE *1 M'ILLI SECONDS INVENTOR- JOHN J. LENTZ BY vv 4m NE? June 23, 1970 J. J. LENTZ DIGITAL COMPUTER 26 Sheets-Sheet 7 Filed Oct. 26, 1953 DELAY UNIT BIS MONITOR UNIT FIG.

INVENTOR.

JOHN J LENTZ ATTORNEY June 23, 1970 J. J. LENTZ 7 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 8 72 INI'ENTOR.

JOHN J. LENTZ ARITHMETIC UNIT F l G. 7 (PART H m M, W

JTTORNEY June 23, 1970 J, ENT 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet *3 IN! 'ENTOR.

JOHN J. LENTZ A l IT FIG. 8 'wggw M M June 23, 1970 J. J. LENTZ 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 10 F IG. 9

CMPARER UNIT V y 19! A v 8 INVENTOR.

JOHN J. LENTZ BY mm.

JTTOR El June 23, 1970 J. J. LENTZ 3,517,391

DIGITAL comruwnn Filed Oct. 26, 1953 26 Sheets-Sheet 11 RECORDING INPUT CIRCUITS F|G 1Q JNIENTOR.

JOHN J. LENTZ 5k -2so 7 SINGLE-SHOT BY WW JTTO EY GATE GENERATOR June 23, 1970 J. J. LENTZ 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 1:

IN! ENTOR.

JOHN .1. LENTZ FIG. 12 secouo TAG H mm.

CONTROL CIRCUITS ,TTORNEY June 23, 1970 J. J. LENTZ DIGITAL COMPUTER 26 Sheets-Sheet 15 Filed Oct. 26, 1953 INVENTOR JOHN J. LE NTZ Tmmn 1 HON:

8 35 A u in; J

June 23, 1970 J. J. LENTZ 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 1? RECORDING HEAD AMPLI F I E R 7 FIG.17

READING HEAD AMPLIFIER INVEN TOR.

I 757 r: JOHN .1. LENTZ I N W. #7

JTTOR Y June 23, 1970 J. .1. LENTZ 3,517,391

DIGITAL COMPUTER Filed Oct. 26, 1953 26 Sheets-Sheet 18 FIG. 19

471 T 519 r P- INIENTOR.

J OHN J. LENTZ BASE OSCILLATOR AND SYNCHRONIZING CIRCUITS .4 TTOR NE Y June 23, 1970 J. J. LENTZ DIGITAL COMPUTER 26 Sheets-Sheet 19 Filed Oct. 26, 1953 M Own Qnm mnm

A 2 F? mm: R m w L W A E u an M J l N H E w new 9. v3 93+ Mmfl gw JTTORN Inn Onn June 23, 1970 J. J. LENTZ DIGITAL COMPUTER 26 Sheets-Sheet 20 Filed Oct. 26, 1953 nwn 0mm mun 2 E4: mozmmzww E3 mwmzaz LVVENTOR.

JOHN J. LE NTZ )TTORAEEY 

